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प्रश्न
Arrange the following metals in the increasing order of their reactivities:
Copper, Zinc, Aluminium, and Iron
उत्तर
Among the following given metals, aluminum is most reactive and copper is least reactive in nature. The reactivity order of the given metals is Al>Zn>Fe>Cu.
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संबंधित प्रश्न
The reaction of an iron nail with copper sulphate solution is ........... reaction.
(a) Combination
(b) Displacement
(c) Double displacement
(d) Decomposition
Why are metals called electropositive elements whereas non-metals are called electronegative elements?
Name the metal which has been placed at the bottom of the reactivity series.
Give reason for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Write the equation for the reaction of Aluminium with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
Write the equation for the reaction of Zinc with dilute hydrochloric acid.
Name the products formed. Also indicate the physical states of all the substances involved.
You are given a solution of AgNO3. Which of the following do you think cannot displace Ag from AgNO3solution?
(a) Magnesium
(b) Zinc
(c) Gold
(d) Copper
The elements whose oxides can turn litmus solution red are:
(a) lithium and sodium
(b) copper and potassium
(c) carbon and hydrogen
(d) phosphorus and sulphur
Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions?
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe
An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.
